Save-all for paper-making machines.



N. BRYANT. SAVE ALL FOR PAPER MAKING MACHINES. APPLICATION FILEDAPR.4,1908.

964,897. Patented J u1y19,191(). "z 5 2 g o o 9' V 14/ I x Q Vmtmaoou 46 mfiw MM rm: NORRIS PETERS cc UNITED STATES PATENT OFFICE.

NOAH BRYANT, 0F KALAMAZOO,

MICHIGAN.

SAVE-ALL FOR PAPER-MAKING MACHINES.

To all whom it may concern:

Be it known that I, NOAH BRYANT, a citizen of the United States,residing at the city of Kalamazoo, county of Kalamazoo, State ofMichigan, have invented certain new and useful Improvements in Save-Allsfor Paper-Waking Machines, of which the following is a specification.

This invention relates to improvements in save-ails for paper makingmachines.

The object of the invention is to provide an effective means ofseparating the pulp from the water from the overflow of a paper makingmachine, whereby the same will be saved and only the water passed out ofthe mill.

Objects relating to details of construction will definitely appear fromthe detailed description to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my invention is clearlyillustrated in the accompanying drawing, forming a part of thisspecification, in which:

Figure 1 is a longitudinal detail sectional elevation view taken on aplane corresponding to line 11 of Fig. 2; Fig. 2 is a transversesectional elevation view taken on a plane corresponding to the irregularline of Fig. 1; and Fig. 3 is an enlarged detail sectional view taken ona plane corresponding to line 3-3 of Fig. 1, showing the details of thepivot for supporting the vibrating frame of my improved machine.

In the drawing the sectional views are taken looking in the direction ofthe little arrows at the ends of the section lines, and similarreference numerals refer to similar parts throughout the several views.

Considering the numbered parts of the drawing, the vibrating frame 1 ishinged or supported on a pair of similar pivots 2 at each side thereof,one of said pivots being indicated in Fig. 3. This frame is supported inan inclined position and is provided with longitudinal bottom slats 8toward its upper portion and transverse slats 4 toward its lowerportion, and on these slats I arrange a fine wire screen 5. This screenhas to 80 mesh to the inch, and when inclined, as shown, water issupported on it and flows along it unless it is effectively jarred, par-Specification of Letters Patent.

Application filed April 4, 1908.

Patented July 19, 1910.

Serial No. 425,265.

ticularly when a light feed of water containing pulp passes over it.

A transverse delivery trough or box 6 receives the overflow from thepaper machine through a suitable conductor pipe 7 This delivery troughis provided with an inwardly projecting ledge like lip 6 over which thewater is delivered to the screen. This serves to spread the water sothat it is delivered to the screen in a sheet-like stream. The conduit 7is adapted to deliver into the trough centrally thereof, and this, withthe ledge, causes a circulation or agitation in the trough, therebypreventing the settling of the pulp in the trough, which would, ofcourse, clog the same and cause the water to be delivered from the spoutto the screen in a large volume at the central part of the screen, whichwould be likely to cause it to flow rapidly across the same and into thedrain tank. The delivery trough is also preferably provided with anoverhanging ledge 6 on its rear wall, which prevents splashing thematerial out of the trough and further assists in spreading the water;that is, preventing its rushing out of the trough at the central point.

The vibration frame is actuated by a pair of cams 8, supported on ashaft 9, which is carried in suitable journal boxes 9 at each end and isdriven preferably by a pulley 9". Metal plates 10 are put at each sideof the frame 1 to contact with the cams 8. A cross stop bar 11 issupported on the end post 14 of the receiving tank below at such aheight that when the cam rotates the vibrating frame 1 will strikeagainst this stop bar 11 with a sharp blow that jars any water that maydescend upon the screen 5 and causes it to pass through the same.

Beneath the vibration frame 1 is an apron or platform 12, which collectsthe water that passes through the screen and discharges it into a chutel3, whence it passes out of the mill. Any pulp that will descend uponthe screen will roll off from the lower edge of the same and iscollected in a tank or box 14, which has upwardly projecting sides 14:",between which is arranged the vibrating frame 1. This tank or box isprovided with slatted sides 15 and a bottom made up of a slatconstruction 16 with suitably gunny sack or canvas lining 17 with aninner wall 18 of cocoanut matting for collecting the pulp and permittingthe contained water to gradually soak or drain out of it. This 00-coanut matting holds up the pulp so that the water readily drainstherefrom and is of such a nature that a shovel may be readily used inshoveling the pulp from the tank. It forms a very clean lining and onewhich is very desirable and does not become clogged in use.

I have thus described the various parts of my improved construction, theoperation of which is as follows: The overflow from the paper machinedescends through the conductor out into the delivery box or trough 6,whence it gradually overflows onto the screen 5 of the vibratingframe 1. The shaft 9, being driven from the pulley 9, acts through thecams 8 on the under side of the same, raising it upward and permittingthe same to drop suddenly with a blow against the stop bar 11 at eachrevolution of the shaft. This sudden jar causes the water to passthrough the fine screen, which screen is so fine that it collects thepulp fiber, which, owing to the jarring motion, rolls on down off thescreen into the drain tank or box beneath. The water passing through thescreen is collected on the platform 12 and passes out as waste waterthrough the chute 13 out of the mill.

Having thus described the various parts of my improved save-all, Idesire to remark that the structure can be considerably varied withoutdeparting from my invention. The particular arrangement of the slates inthe bottom underneath the fine Wire screen I have found to be mosteffective, as this allows the water to pass freely through the upperpart where it is delivered in volume and assists in preventing theforming of little streams or rivulets through the collected pulp to thelower end of the screen, but I am aware that the machine would operatefairly well if the screen was otherwise supported. The sudden jarring ofthe screen also serves to prevent its becoming clogged by the pulppassing over the same.

It is necessary for the frame to vibrate the screen and cause it tostrike with a sharp blow in order to compel the water which is naturallyretained upon the screen by the force of capillary attraction to descendthrough the screen in place of flowing down over the lower edge of theframe.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a save-all for paper pulp, the combination of the inclinedoscillating frame 1 provided with a slatted bottom having longitudinalslats 3 toward its upper edge and transverse slats 4 toward its loweredge, with a fine wire screen 5 resting upon the Same; a suitable pivotsupport 2 at the lower end of said frame; cams 8 on shaft 9 beneath theframe for oscillating the same up and down; a stop 11 for arresting thedownward motion of the frame; a trough 6 for discharging waste waterfrom a paper machine upon the said screen; a platform or apron beneaththe oscillating frame; and a box for collecting the pulp that isscreened from the water, substantially as described and for the purposespecified.

2. In a save-all for paper pulp, the combination of the inclinedoscillating frame 1 provided with a slatted bottom, with a. fine screen5 resting upon the same; a suitable pivot support 2 at the lower end ofthe said frame; cams 8 on shaft 9 beneath the frame for oscillating thesame up and down; a stop 11 for arresting the downward motion of theframe; a trough 6 for discharging waste water from a paper machine uponthe said screen; a platform or apron beneath the oscillating frame; anda box for collecting the pulp that is screened from the Water,substantially as described and for the purpose specified.

8. In a save-all for pulp, the combination of an inclined oscillatingframe provided with a slatted bottom, with a fine wire screen restingthereon; said screen being of a mesh sufiiciently fine to prevent thepassage of pulp fiber therethrough; a pivot support for said frame;means for oscillating the said frame up and down; and a suitable stopfor arresting the downward motion of the said frame, whereby the samewill be given a sharp jar; an apron for collecting the water that passesthrough the screen, and a receptacle for collecting the pulp that rollsover the side thereof, coacting for the purpose specified.

4:. In a save-all for pulp, the combination of an inclined oscillatingframe with a fine wire screen suitably supported in its bot tom, saidscreen being of a mesh suflieiently fine to prevent the passage of pulpfiber therethrough and carry water flowing over it in a light sheet; apivot support for said frame; means of oscillating the said frame up anddown; a suitable stop for arresting the motion of the said frame,whereby the same will be given ajar; and a receptacle for collecting thepul) that rolls over the side thereof, coacting or the purposespecified.

In a structure of the class described, the combination with an inclinedoscillating frame comprising a. slatted bottom having longitudinal slatstoward its upper end and transverse slats toward its lower end with afine wire screen resting upon the same; a pivoted support at the lowerend of said frame; a means for oscillating said frame up and down; astop for arresting the downward motion of the frame; a delivery trougharranged above the upper end of said frame transversely thereof, saiddelivery trough having an inwardlyprojecting lip on its forward edgeover which the material is delivered to said screen; and a deliveryconduit arranged to deliver centrally to said delivery trough.

6. In a structure of the class described, the combination with aninclined oscillating frame comprising a slatted bottom havinglongitudinal slats toward its upper end and transverse slats toward itslower end with a fine wire screen resting upon the same; means forshaking said frame; a delivery trough arranged above the upper end ofsaid frame transversely thereof said delivery trough having an inwardlyprojecting lip on its forward edge over which the material is deliveredto said screen; and a delivery conduit arranged to deliver centrally tosaid delivery trough.

7. In a structure of the class described, the combination with aninclined oscillating frame comprising a slatted bottom havinglongitudinal slats toward its upper end and transverse slats toward itslower end with a fine wire screen resting upon the same; a pivotedsupport at the lower end of said frame; a means for oscillating saidframe; and a stop for arresting the downward motion of the frame.

8. In a structure of the class described, the combination with aninclined oscillating frame comprising a slatted bottom havinglongitudinal slats toward its upper end and transverse slats toward itslower end with a fine wire screen resting upon the same; and means forshaking said frame.

9. In a structure of the class described, the combination with aninclined screen; a pivoted support at the lower end of said frame; meansfor oscillating the same up and down; a stop for arresting the downwardmotion of the frame; a delivery trough arranged above the upper end ofsaid screen transversely thereof, said delivery trough having aninwardly projecting lip on its forward edge over which the material isdelivered to said screen and an overhanging guard on its rear wall; anda delivery conduit arranged to deliver centrally to said deliverytrough.

10. In a structure of the class described, the combination with aninclined screen;

means for shaking said screen; a delivery trough arranged above theupper end of said screen transversely thereof, said delivery troughhaving an inwardly projecting lip on its forward edge over which thematerial is delivered to said screen; and a delivery conduit arranged todeliver centrally to said delivery trough.

11. In a structure of the class described, the combination with aninclined screen; means for shaking said screen; and a delivery trougharranged above the upper end of said screen transversely thereof, saiddeliv ery trough having an inwardly projecting lip on its forward edgeover which the material is delivered to said screen and an overhangingguard on its rear wall.

12. In a structure of the class described, thecombination with aninclined oscillating screen, said screen being of a mesh sufficientlyfine to prevent the passage of pulp fiber therethrough and carry waterflowing over it in a light sheet; means for oscillating said screen; anda suitable stop for arresting the motion of said screen, whereby thesame will be given a jar.

13. In a structure of the class described, the combination with anoscillating screen arranged in an inclined position, said screen beingof a mesh sufficiently fine to prevent the passage of pulp fibertherethrough and carry water flowing over it in a light sheet; means foroscillating said screen with a jarring motion; a delivery trougharranged at the upper end of said screen adapted to deliver the wastewater from a paper machine across the upper end thereof in a sheetlikestream.

14:. In a structure of the class described, a drain tank comprisingslatted side and bottom walls; a lining of coarse fabric therefor; andan inner wall formed of cocoanut matting.

In witness whereof, I have hereunto set my hand and seal in the presenceof two witnesses.

NOAH BRYANT. [Ls] Witnesses:

L. G. GREENFIELD, GERTRUDE TALLMAN.

